Goal of The Bay of Pigs invasion in April,1961. was to overthrow Cuba's president Castro. It was totally unsuccesful and counter-revolutionary military, trained by CIA was defeated in just two days. As wikipedia says, Dwight Eisenhower allocated $13.1 million to the CIA in order to plan Castro's overthrow. Also, they were supplied good and had good armament.My question is what is the reason why was the Bay of Pigs invasion unsuccessful? I mean all the reasons above lead that USA could overthrow Castro. Thanks in advance.